GOSSIP: Kim Kardashians Sex Tape Is Going to Cost What!?

The mystery buyer looking to purchase Kim Kardashian’s sex tape needs to muster up at least $30 million if they want a CHANCE at taking it off the market … TMZ has learned.We spoke with Vivid Entertainment top banana Steve Hirsch … who tells us he HAS made contact with the lawyer who’s representing the mystery party interested in buying the rights to the sex tape … and he’s open to the possibility of a deal.Hirsch tells us … “Based on its long term value, it looks like $30 million would be a starting point for a discussion on all of the rights.”Hirsch adds, “I have no idea who is behind this offer … but If it’s Kim, I have a tremendous amount of respect for her. She has my number and can call me any time.”